ECHELON RIDERS CLUB — Mike's Bikes, 836 Fourth St., San Rafael; 454-2361; www.echelonridersclub.org; wayne@echelonridersclub.org. Sundays: Free safety talk at 10:45 a.m. in the parking lot on Fifth Street behind Mike's Bikes in San Rafael followed by free 90-minute road bike ride for adults at 9 a.m. Children 12 to 17 OK if accompanied by an adult.

FRIENDS OF MOUNT TAM — 258-2410; www.friendsofmttam.org. Dec. 14: Five- to seven-mile hike with up to 1,500-foot elevation gain leaves at 10 a.m. from the Rock Spring trailhead. Back between 1:15 and 2:30 p.m. Dec. 15: Moderate seven- to nine-mile hike with up to 2,200-foot elevation gain leaves at 10 a.m. from the Rock Spring trailhead. Back between 1:15 and 2:30 p.m.

POINT REYES OUTDOORS — 663-8192; www.pointreyesoutdoors.com. Weekends: Tule elk kayaking tours for all ages. No experience required. 10 a.m. to 2 p.m. $85. Weekends: Morning, full day and sunset wildlife kayaking tours on Tomales Bay. Call for reservations. Private kayaking tours are also available anytime. Mountain bike rentals are available at 11401 Highway 1 in Point Reyes Station for $35 to $42 a day.

The Outdoor Calendar appears on Mondays. Send listings and high-resolution (300 dpi, 1 MB) jpg photo attachments to calendar@marinij.com. Items should be sent two weeks in advance. Include a daytime phone number on your release.